Home / 13,272.69-18,317.16-7,893.66

Finding the Fourth Proportional to 13,272.69, 18,317.16 and 7,893.66

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Solution

The fourth proportional to 13,272.69, 18,317.16 and 7,893.66 is: 10,893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.69 : 18,317.16 = 7,893.66 : x
  2. Step 2: Convert to fraction form
    13,272.69/18,317.16 = 7,893.66/x
  3. Step 3: Cross multiply
    13,272.69x = 18,317.16 × 7,893.66
  4. Step 4: Simplify right side
    13,272.69x = 144,589,433.21
  5. Step 5: Solve for x
    x = 144,589,433.21/13,272.69
  6. Step 6: Final answer
    x = 10,893.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.